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Side-by-side financial comparison of Armour Residential REIT, Inc. (ARR) and PDF SOLUTIONS INC (PDFS). Click either name above to swap in a different company.

PDF SOLUTIONS INC is the larger business by last-quarter revenue ($62.4M vs $50.4M, roughly 1.2× Armour Residential REIT, Inc.). Armour Residential REIT, Inc. runs the higher net margin — 420.2% vs -0.1%, a 420.3% gap on every dollar of revenue. On growth, Armour Residential REIT, Inc. posted the faster year-over-year revenue change (297.9% vs 24.6%). Over the past eight quarters, Armour Residential REIT, Inc.'s revenue compounded faster (108.0% CAGR vs 22.9%).

Armour Residential REIT, Inc. is a U.S.-based real estate investment trust that primarily invests in agency residential mortgage-backed securities guaranteed by U.S. government-sponsored entities. It focuses on generating consistent long-term net income for shareholders via strategic asset management and active interest rate risk mitigation.

PDF Solutions, Inc. is an American multinational software and engineering services company based in Santa Clara, California. The company is listed in the Nasdaq stock exchange under the ticker symbol PDFS.

ARR vs PDFS — Head-to-Head

Bigger by revenue
PDFS
PDFS
1.2× larger
PDFS
$62.4M
$50.4M
ARR
Growing faster (revenue YoY)
ARR
ARR
+273.3% gap
ARR
297.9%
24.6%
PDFS
Higher net margin
ARR
ARR
420.3% more per $
ARR
420.2%
-0.1%
PDFS
Faster 2-yr revenue CAGR
ARR
ARR
Annualised
ARR
108.0%
22.9%
PDFS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ARR
ARR
PDFS
PDFS
Revenue
$50.4M
$62.4M
Net Profit
$211.7M
$-48.0K
Gross Margin
72.9%
Operating Margin
5.5%
Net Margin
420.2%
-0.1%
Revenue YoY
297.9%
24.6%
Net Profit YoY
555.9%
-108.9%
EPS (diluted)
$2.43
$0.00

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
ARR
ARR
PDFS
PDFS
Q4 25
$50.4M
$62.4M
Q3 25
$38.5M
$57.1M
Q2 25
$33.1M
$51.7M
Q1 25
$36.3M
$47.8M
Q4 24
$12.7M
$50.1M
Q3 24
$46.4M
Q2 24
$7.0M
$41.7M
Q1 24
$41.3M
Net Profit
ARR
ARR
PDFS
PDFS
Q4 25
$211.7M
$-48.0K
Q3 25
$159.3M
$1.3M
Q2 25
$-75.6M
$1.1M
Q1 25
$27.3M
$-3.0M
Q4 24
$-46.4M
$539.0K
Q3 24
$2.2M
Q2 24
$-48.4M
$1.7M
Q1 24
$-393.0K
Gross Margin
ARR
ARR
PDFS
PDFS
Q4 25
72.9%
Q3 25
72.3%
Q2 25
71.2%
Q1 25
72.9%
Q4 24
68.3%
Q3 24
73.1%
Q2 24
70.6%
Q1 24
67.3%
Operating Margin
ARR
ARR
PDFS
PDFS
Q4 25
5.5%
Q3 25
8.5%
Q2 25
2.2%
Q1 25
-7.4%
Q4 24
1.0%
Q3 24
4.6%
Q2 24
0.6%
Q1 24
-4.7%
Net Margin
ARR
ARR
PDFS
PDFS
Q4 25
420.2%
-0.1%
Q3 25
413.5%
2.3%
Q2 25
-228.4%
2.2%
Q1 25
75.2%
-6.3%
Q4 24
-366.8%
1.1%
Q3 24
4.8%
Q2 24
-693.8%
4.1%
Q1 24
-1.0%
EPS (diluted)
ARR
ARR
PDFS
PDFS
Q4 25
$2.43
$0.00
Q3 25
$1.49
$0.03
Q2 25
$-0.94
$0.03
Q1 25
$0.32
$-0.08
Q4 24
$-0.91
$0.01
Q3 24
$0.06
Q2 24
$-1.05
$0.04
Q1 24
$-0.01

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
ARR
ARR
PDFS
PDFS
Cash + ST InvestmentsLiquidity on hand
$63.3M
$42.2M
Total DebtLower is stronger
$67.0M
Stockholders' EquityBook value
$2.3B
$271.0M
Total Assets
$21.0B
$418.7M
Debt / EquityLower = less leverage
0.25×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARR
ARR
PDFS
PDFS
Q4 25
$63.3M
$42.2M
Q3 25
$44.2M
$35.9M
Q2 25
$141.2M
$40.4M
Q1 25
$49.1M
$54.1M
Q4 24
$68.0M
$114.9M
Q3 24
$120.2M
Q2 24
$126.6M
$117.9M
Q1 24
$122.9M
Total Debt
ARR
ARR
PDFS
PDFS
Q4 25
$67.0M
Q3 25
$67.6M
Q2 25
$68.1M
Q1 25
$68.7M
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
ARR
ARR
PDFS
PDFS
Q4 25
$2.3B
$271.0M
Q3 25
$2.1B
$264.4M
Q2 25
$1.7B
$257.5M
Q1 25
$1.7B
$249.0M
Q4 24
$1.4B
$246.0M
Q3 24
$240.5M
Q2 24
$1.2B
$232.2M
Q1 24
$225.4M
Total Assets
ARR
ARR
PDFS
PDFS
Q4 25
$21.0B
$418.7M
Q3 25
$19.4B
$406.4M
Q2 25
$16.2B
$391.1M
Q1 25
$15.5B
$390.0M
Q4 24
$13.5B
$315.3M
Q3 24
$307.4M
Q2 24
$10.1B
$298.0M
Q1 24
$286.8M
Debt / Equity
ARR
ARR
PDFS
PDFS
Q4 25
0.25×
Q3 25
0.26×
Q2 25
0.26×
Q1 25
0.28×
Q4 24
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
ARR
ARR
PDFS
PDFS
Operating Cash FlowLast quarter
$124.2M
$17.3M
Free Cash FlowOCF − Capex
$7.5M
FCF MarginFCF / Revenue
12.1%
Capex IntensityCapex / Revenue
15.7%
Cash ConversionOCF / Net Profit
0.59×
TTM Free Cash FlowTrailing 4 quarters
$-8.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARR
ARR
PDFS
PDFS
Q4 25
$124.2M
$17.3M
Q3 25
$-37.8M
$3.3M
Q2 25
$25.0M
$-5.2M
Q1 25
$101.5M
$8.6M
Q4 24
$261.5M
$1.6M
Q3 24
$9.3M
Q2 24
$27.1M
$684.0K
Q1 24
$-1.9M
Free Cash Flow
ARR
ARR
PDFS
PDFS
Q4 25
$7.5M
Q3 25
$-2.9M
Q2 25
$-13.8M
Q1 25
$535.0K
Q4 24
$-4.0M
Q3 24
$5.1M
Q2 24
$-4.6M
Q1 24
$-3.9M
FCF Margin
ARR
ARR
PDFS
PDFS
Q4 25
12.1%
Q3 25
-5.1%
Q2 25
-26.6%
Q1 25
1.1%
Q4 24
-8.0%
Q3 24
11.0%
Q2 24
-11.1%
Q1 24
-9.4%
Capex Intensity
ARR
ARR
PDFS
PDFS
Q4 25
15.7%
Q3 25
10.8%
Q2 25
16.5%
Q1 25
17.0%
Q4 24
11.3%
Q3 24
9.0%
Q2 24
12.8%
Q1 24
4.9%
Cash Conversion
ARR
ARR
PDFS
PDFS
Q4 25
0.59×
Q3 25
-0.24×
2.54×
Q2 25
-4.55×
Q1 25
3.71×
Q4 24
2.98×
Q3 24
4.20×
Q2 24
0.40×
Q1 24

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

ARR
ARR

Segment breakdown not available.

PDFS
PDFS

Volumebased$38.0M61%
Other$24.4M39%

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